Wireshark · Wireshark-bugs: [Wireshark-bugs] [Bug 10522] GSM MAP LocationNumber parameter decoded incorrectly

[bugzilla-daemon@xxxxxxxxxxxxx]

Comment # 2 on bug 10522 from Geoff Hart

Hi,

The problem (in my opinion) is that the first 2 bytes of this 7-byte field are
flags, specifically: 0x0317 which decodes to:


Octet 1
0... .... = Odd/Even: False
..00 0011 = Nature of address indicator: national (significant) number
(national use) (3)

Octet 2
0... .... = Internal Network Number indicator (INN): False
..01 .... = Numbering plan indicator: ISDN (telephony) numbering plan (ITU-T
Recommendation E.164) (1)
.... 01.. = Address presentation restricted indicator: presentation restricted
(1)
.... ..11 = Screening indicator: network provided (3)


That should leave you with 5 bytes of undecoded data for the Address-Digits.
However, in the current decode, you see 6-bytes of address digits:

Address Digits: 712265113419  from (0x17 22 56 11 43 91)


So I believe the problem here is the value in Octet-2 got re-used incorrect in
the Address Digits field, making it 2 digits longer than it should be.

Geoff

---

      You are receiving this mail because:

• You are watching all bug changes.